Scroller Problem on EOS

This weekend we've been having problems with our EOS, below is the scenario we encountered.

-I started with my standard show file and cleared the patch using Displays->Clear->Patch.

-After clearing the patch I went to the park screen, realizing that I still had chan 27-30 parked at 25%, and attempted to un-park the channels

-The patch screen showed chan 27-30 in the parked channels section, but had no value for intensity.  Also the live screen still showed a 'P' for these channels.  This was my first problem.

-I continued to patch the show that we were hanging without any problems

-The next day I came in and hung the scrollers.  I bumped through them by address on the RFR (using park mode on the RFR) and each scroller came to full as I got to it's address but would not go back to 00%, which I thought was odd as I was using the next key on the RFR, which would normally put the channel at 00% when I move on the the next channel. This is my second problem

-I disregarded that since I had more work to do

-Later after I patched the scrollers (they were patched as intensity channels as the tour was bringing as Expression disk for us to import) and they were still stuck at Full

-I first assumed that I had a scroller problem, but I hooked up a DMX tester directly to the node output and sure enough Address 3/1-8 were all stuck at full.

-I attempted to un-park the channels, (although they did not appear on the park screen anywhere)

-I attempted to un-patch the channels and re-patch them.

-I then went back to my DMX tester and brought up address address 3/9 and 3/10 from my RFR, after which these addresses we also stuck at Full

-Please note that I have been able to bump though other addresses from my RFR without any problems

-I next decided to shut everything down and reboot everything one item at a time.

-Once the RPU came back on-line (the first item I rebooted) Address 3/1-8 came back down to 00%, and chan 27-30 had disappeared from park, but address 3/9+10 were still at Full.

-Thinking everything was fine I went ahead and imported the ASCII file that EOL had created

-I then imported all the parts of the EOS fine with the exception of Cues, Subs and Groups

-I thought everything was fixed, until half way though cuing when the board op told me that the scrollers were once again stuck at Full

-I then used NCE to change my node output to universe 4 and patched my scrollers on the EOS at 4/1-8,  I haven't had any problems since, however 3/1-8 is still stuck at full.

All consoles and Clients are running 1.4.2

My system is set up as follows:

EOS RPU (running as Master)

EOS Console (running as Backup)

2 x EOS Client Computer

2 x DMX nodes configured as:

-Node 1:

--Port 1 - DMX IN - Universe 1

--Port 2 - DMX IN - Universe 2

--Port 3 - DMX OUT - Universe 1

--Port 4 - DMX OUT - Universe 2

-Node 2:

--Port 1 - DMX IN - Universe 1

--Port 2 - DMX IN - Universe 2

--Port 3 - DMX OUT - Universe 3